Lithotripsy device for breaking up body stones, lithotripsy system, retrofit kit for retrofitting an existing lithotripsy device, and method for operating a lithotripsy device

Abstract

The invention relates to a lithotripsy device for fragmenting body stones, wherein the lithotripsy device has a hand-held device with an ultrasonic vibration exciter with an ultrasonic vibration exciter outer diameter and a sonotrode with a longitudinal central axis and a sonotrode outer diameter which can be connected to the hand-held device on the distal side, wherein the sonotrode can be excited to a first vibration by means of the ultrasonic vibration exciter, and the lithotripsy device has a vibration excitation element with a through-opening, wherein the vibration excitation element with the through-opening is arranged around the sonotrode outer diameter and/or around the ultrasonic vibration exciter outer diameter, wherein the through-opening of the vibration excitation element has a larger diameter than the sonotrode outer diameter and/or than the ultrasonic vibration exciter outer diameter so that the vibration excitation element is freely movable, and the vibration excitation element has an imbalance so that, in the event of a rotation of the vibration excitation element about the sonotrode and/or the ultrasonic vibration exciter, the sonotrode can be excited to a second vibration by means of the imbalance. Furthermore, the invention relates to a lithotripsy system, a retrofitting kit for retrofitting an existing lithotripsy device, and a method for operating a lithotripsy device.

1 . Lithotripsy device ( 101 ,  201 ) for fragmenting body stones, wherein the lithotripsy device ( 101 ,  201 ) has a hand-held device ( 231 ) with an ultrasonic vibration exciter ( 103 ,  203 ) with an ultrasonic vibration exciter outer diameter and a sonotrode ( 107 ,  207 ) with a longitudinal central axis ( 117 ) and a sonotrode outer diameter ( 108 ,  208 ), which can be connected to the hand-held device ( 231 ) on the distal side, wherein the sonotrode ( 107 ,  207 ) can be excited to a first vibration by means of the ultrasonic vibration exciter ( 103 ,  203 ), and the lithotripsy device ( 101 ,  201 ) has a vibration excitation element ( 113 ,  213 ) with a through-opening ( 114 ,  214 ), wherein the vibration excitation element ( 113 ,  213 ) with the through-opening ( 114 ,  214 ) is arranged around the sonotrode outer diameter ( 108 ,  208 ) and/or around the ultrasonic vibration exciter outer diameter, characterized in that the through-opening ( 114 ,  214 ) of the vibration excitation element ( 113 ,  213 ) has a larger diameter than the sonotrode outer diameter ( 108 ,  208 ) and/or than the ultrasonic vibration exciter outer diameter so that the vibration excitation element ( 113 ,  213 ) is freely movable, and the vibration excitation element ( 113 ,  213 ) has an imbalance so that, in the event of a rotation of the vibration excitation element ( 113 ,  213 ) about the sonotrode ( 107 ,  207 ) and/or the ultrasonic vibration exciter, the sonotrode ( 107 ,  207 ) can be excited to a second vibration by means of the imbalance. 
     
     
         2 . Lithotripsy device ( 101 ,  201 ) according to  claim 1 , characterized in that the vibration excitation element ( 113 ,  213 ) is disc-shaped, annular, hollow-cylinder-shaped, and/or toroidal. 
     
     
         3 . Lithotripsy device ( 101 ,  201 ) according to  claim 1 or 2 , characterized in that the vibration excitation element ( 113 ,  213 ) has an axis of rotation deviating from the longitudinal central axis ( 117 ) and/or its main axis of inertia. 
     
     
         4 . Lithotripsy device ( 101 ,  201 ) according to  any of the preceding claims , characterized in that the vibration excitation element ( 113 ,  213 ) has an imbalance element ( 115 ,  215 ) in its interior and/or on its outer surface. 
     
     
         5 . Lithotripsy device ( 101 ,  201 ) according to  any of the preceding claims , characterized in that the vibration excitation element ( 113 ,  213 ) has a recess. 
     
     
         6 . Lithotripsy device ( 101 ,  201 ) according to  claim 4 or 5 , characterized in that the imbalance element ( 115 ,  215 ) and/or the recess is or are arranged on a distal side and/or a proximal side of the vibration excitation element ( 113 ,  213 ). 
     
     
         7 . Lithotripsy device ( 101 ,  201 ) according to  any of the preceding claims , characterized in that the lithotripsy device ( 101 ,  201 ) has a drive apparatus for driving the rotation of the vibration excitation element ( 113 ,  213 ). 
     
     
         8 . Lithotripsy device ( 101 ,  201 ) according to  claim 7 , characterized in that the drive apparatus has a nozzle ( 127 ) for effecting a compressed gas flow on the vibration excitation element ( 113 ,  213 ). 
     
     
         9 . Lithotripsy device ( 101 ,  201 ) according to  claim 8 , characterized in that the vibration excitation element ( 113 ,  213 ) has a groove ( 216 ) in a lateral surface ( 218 ) for effecting the compressed gas flow. 
     
     
         10 . Lithotripsy device ( 101 ,  201 ) according to  any of the preceding claims , characterized in that the lithotripsy device ( 101 ,  201 ) has an attachable holder housing ( 233 ), wherein the attachable holder housing ( 233 ) surrounds the vibration excitation element ( 113 ,  213 ), a proximal end ( 109 ,  209 ) of the sonotrode ( 107 ,  207 ) and/or the ultrasonic vibration exciter ( 103 ,  203 ). 
     
     
         11 . Lithotripsy device ( 101 ,  201 ) according to  claim 10 , characterized in that the attachable holder housing ( 233 ) internally has a proximal stop and/or a distal stop for limiting a movement path of the vibration excitation element along the longitudinal central axis ( 117 ) of the sonotrode and/or an inlet opening ( 241 ) and an outlet opening ( 243 ) for the compressed gas flow. 
     
     
         12 . Lithotripsy device ( 101 ,  201 ) according to  claim 11 , characterized in that a spacer element ( 237 ) is arranged between the proximal stop and the vibration excitation element ( 113 ,  213 ) and/or between the vibration excitation element ( 113 ,  213 ) and the distal stop. 
     
     
         13 . Lithotripsy system for fragmenting body stones, characterized in that the lithotripsy system has a lithotripsy device ( 101 ,  201 ) according to any of  claims 1 to 12 , a plurality of vibration excitation elements with a relevant imbalance ( 113 ,  213 ), and/or a plurality of sonotrodes ( 107 ,  207 ). 
     
     
         14 . Retrofitting kit for retrofitting an existing lithotripsy device, wherein the existing lithotripsy device has a sonotrode ( 107 ,  207 ) and an ultrasonic vibration exciter ( 103 ,  203 ), characterized in that the retrofitting kit has at least one vibration excitation element ( 113 ,  213 ) with an imbalance and with a through-opening ( 114 ,  214 ) for sliding onto the existing sonotrode ( 107 ,  207 ), a drive apparatus for effecting a rotation of the vibration excitation element ( 113 ,  213 ), and/or an attachable holder housing ( 233 ) for surrounding the vibration excitation element ( 113 ,  213 ), a proximal end ( 109 ,  209 ) of the sonotrode ( 107 ,  207 ) and/or the ultrasonic vibration exciter ( 103 ,  203 ), such that a lithotripsy device ( 101 ,  201 ) according to any of  claims 1 to 12  can be formed. 
     
     
         15 . Method ( 301 ) for operating a lithotripsy device ( 101 ,  201 ), wherein the lithotripsy device ( 101 ,  201 ) has an ultrasonic vibration exciter ( 103 ,  203 ), a sonotrode ( 107 ,  207 ) with an outer diameter ( 108 ,  208 ), a vibration excitation element ( 113 ,  213 ) with an imbalance and with a through-opening ( 114 ,  214 ), and a drive apparatus for driving a rotation of the vibration excitation element ( 113 ,  213 ), wherein the vibration excitation element ( 113 ,  213 ) is arranged with the through-opening ( 114 ,  214 ) around the outer diameter ( 108 ,  208 ) of the sonotrode ( 107 ,  207 ), and the through-opening ( 114 ,  214 ) of the vibration excitation element ( 113 ,  213 ) has a larger diameter than the outer diameter ( 108 ,  208 ) of the sonotrode ( 107 ,  207 ) so that the vibration excitation element ( 113 ,  213 ) is freely movable, comprising the following steps:
 Exciting ( 303 ) a first vibration of the sonotrode ( 107 ,  207 ) by means of the ultrasonic vibration exciter ( 103 ,  203 ),   Driving ( 305 ) the rotation of the vibration excitation element ( 113 ,  213 ) about the sonotrode ( 107 ,  207 ) by means of the drive apparatus, and   Exciting ( 307 ) a second vibration of the sonotrode ( 107 ,  207 ) by means of the imbalance of the rotating vibration excitation element ( 113 ,  213 ).